Improvement in hokse-shoe machine



@eine taies @anni @fitta CHARLES H.1 PERKINS AND RICHARD W. COMSTOCK,vOF PROVIDENCE,

. RHODE ISLAND.

Letters Patent No. '65,265, dated .May 28, 1.86"(

IMPROVEMENT IN HORSE-SHOE MACHINE.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, CHARLES H. PnnKINs and RICHARD W. CoMs'rocK, bothof the city and county of Providence, in the State of Rhode Island, haveinvented certain new and useful improvements in Machines for MakingHorse-Shoes; and we do hereby declare that the following specification,taken in connection with the drawings making a part of the same, is afull, clear, and exact description thereof.

Figure 1 is a side elevation with the side of the frame removed.

Figure 2 is a. top view.

The machine herein described is intended to embody in its mode ofoperation the combined advantages which result from fashioning ahorse-shoe by both the hammering and the rolling-processes, which haveheretofore been separately employed.

In the accompanying drawings, A represents a rectangular bed or frame,of sufficient height and width to allow space beneath the table for themachinery for giving motion to the sliding anvil hereinafter described.Instead of a tilting or other form of hammer commonly employed, we makeuse of one or more rotary hammers, B B, which are in the form oflcylindricall rollers, made of steel, and fitted to turn upon axlesmounted in a revolving frame, C C, radiating from the shaft D. A rapidmotion isto be given to such shaft by a beltror other means.l The blankfrom which the shoe is to be made before it is presented to the machinehas, as is new customary, been bent into the general form of a shoe byother machinery, as, for example7 such as.is described in an applicationmade by us of an even date herewith for Letters Patent for a-machine forbending the blanks of horse-shoes. Instead of a stationary anvil or diefor holding the blank while it is being hammered, we employ a movableone, so arranged with reference to the revolving hammers B that it shall.travel continuously underneath the faces of the hammers until everypart of the surface of the blank has been hammered, but at a rate ofspeed quite slow in comparison with the speed of revolution of thehammers. This movable anvil is shown at E. It is provided with a raiseddie-block, a, whoseV outline is in the form of thereverse of theshape tobe given to the under side of the shoe, and is mounted upon a bed, F,which is arranged between suitable guides, to have a reciprocatingmovement given to it'. This movement, in this instance, is effected bymeans of the long arm Gr of the bell-crank lever G H, whose fulcrum isthe transverse axle I), and is made-to vibrate in consequence of theaction of the revolving cam I, madc fast to the axle C of the toothedwheel J, (whose motion is derived from the shaft D through the belt cland pinion JQ) impinging against the surface of the short arm II of thebell-crank lever. After thc cam I has in the course of its revolutionmoved away from the surface of the, arm H, the bed F and the bell-cranklever, whose longer arm bears near its end against the rear of such bed,is drawn backward by a weight, lc, attached by a cord, c, to the bed,orby other convenient means. The sliding bed described is furnished witha pair of tongs, L, pivoted to the bed at f, and kept open by a spring,g. The jaws of thc tongs embrace thc rear portion of the die-block a,and are intended to gripe by the heels a shoe which has been placed uponthe anvil. A hinged double lever, M M, united by the cross-bar M,-will,when raised, as shown in red outline, fig. 1, allow the spring g to openthe tongs, but when depressed, as shown in black outline in the samefigure, will, by means of inclined planes atlixcd to the inner sides ofthe levers, press against the edges of the handles ofthe tongs and causethe jaws of the same to close.

From the foregoing description it will be understood that if a blank beplaced upon the anvil in front of and embracing the die-block a, and themachine be put in operation so soon as the cross-bar M of the levers M Mhas, by the forward movement of the bed F, descended the inclined planet, the operator can by pressure upon such cross-bar cause the tongs 'togripe the blankby the pressure of itsjaws against the outer edge of theheels. The continual movement of the bed will carry the blank underneaththe revolving hammers, which will in rapid succession strike the surfaceof the shoe at every point which is tangential to the circumference ofthe hammers and effect what is technically termed the i plating of theshoe. After the blank has passed beyond the action of the hammers, thelevers M M can be raised so as to release the gripe of the tongs, whenthe finished shoe can be removed by any suitable means.

It will be observed that accompanying the percussive action of thehammers to render dense and compact the particles of the metal, there isalso a drawing action, the effect of which is made very apparent uponthe toe ofthe shoe Where the line of motion of the hammers is across thegrain of the metal, and by means of which the shoe is made broad at thepoint where the greates breadth is required'.

What we claim as our invention, 'and desire to secure by Letters Patent,isA

The combination, in a machine for making horse-shoes, of the followinginstrumentalities: A rotary hammer, B, a. sliding anvil, E, orequivalent apparatus for supporting the shoe-b/lank, and thegriping-tongs L, arranged relatively to each other, and operatingsubstantially as described for tbe purposes specified.

` CHALES H. PERKINS,

RICHARD W. COMSTOCK.

Witnesses:

W. B. VINCENT, W. W. RICHARD.

